Karl Olsberg
Karl Olsberg has written at least 10 books. Their most popular book is Boy in a White Room with 5 saves with an average rating of 3⭐.
They are best known for writing in the genres Science fiction, Young Adult, and Fantasy.
Karl Olsberg has written at least 10 books. Their most popular book is Boy in a White Room with 5 saves with an average rating of 3⭐.
They are best known for writing in the genres Science fiction, Young Adult, and Fantasy.
 Boy in a White Room
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 Mirror Welt Mirror Welt: Prequel
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 Mirror
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 Virtua Virtua
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 Das Dorf Band 3: Der Streit
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 Boy in a Dead End Boy in a Dead End
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 Girl in a Strange Land Girl in a Strange Land
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Mirror Mirror: Thriller
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 Zrcátko
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 Würfelwelt Würfelwelt
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